Code is um, code, so yes, you should test logging statements. It'll not only demo why you thought it was important, but give someone else a chance if something does go wrong. Otherwise, continue to scroll-scroll-scroll-scroll
Diverge, Converge fills a gap between Mob Programming and Pair Programming. At some point of a teams maturity, it becomes a natural evolution and I encourage this behavior with a little bit of structure. Adapt it as you see fit!